It has been more than a year since the lane closure scandal on the George Washington Bridge, and a legislative committee has been investigating why the three access lanes were shut down – snarling traffic.

Parents of children killed in the 2012 Newtown, Conn., school shooting joined Democrats Thursday in calling on New Jersey Gov. Chris Christie to sign a ban on ammunition magazines that hold more than 10 rounds.

A New Jersey legislative committee has ordered current and former aides to Republican Gov. Chris Christie and two officials at the Port Authority of New York and New Jersey to testify in the committee’s probe of politically motivated traffic jams last year near the George Washington Bridge.